Steam-governor



, Patented June'M, 188|.

(Model.)

No.l 242,835.

WTA/5555 UNITED STATES PATENT OEEICE.

WILLIAM n. MIGHENEE, or osvvEeo7 NEw'vonx.

STEAM-GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 242,835, dated June 14,1881.

Application filed November 29, 1880. (Model.)

To all lwhom it may concern:

Be it known that I, WILLIAM R. MIGHENER, of Oswego, in the county ofOswego, in the State of New York, have invented new and usefulImprovements in Steam-Governors, of which the following, taken inconnection with the accompanying drawings, is a full, clear, and exactdescription.

This invention relates to the class of governors which, aside from theordinary regulating ot the ingress of the steam to the cylinder duringthe operation of the engine, also cutoff the flow of steam in case ofbreakage or disconnection of the governor-belt, and thus prevent the dangers incident to excessive velocity of the engine.

y improvements consist, chiefly, in the combination of a governor-valvecase havin ga single vertical steam-passage with an annular enlargementat its intersection with the lateral induction-passage, and provided,above and below said enlargement, respectively, with a single port, anda valve arranged in the vertical passage, and having at each of theaforesaid ports two peripheral flanges, with a peripheral recess betweensame, and a steam-passage ex tended vertically through the axis of saidvalve, by which construct-ion and combination` a governor-valve isobtained which is simple in construction, eicien tand sensitivein itsoperation, and capable of automatically closing the valve in case ofaccidental slipping or breaking of the governor-belt or defects in theactuating mechanism of the governor.

My improvements also consist in improved means of deectin g anduniformlydistributin g the ow of steam around the valve, all ashereinafter more fully described.

In the accompanying drawings, Figures l and 2 are vertical sections of agovernor, showing my improved valve in various positions; and Figs. 3and et are horizontal sections on lines a x and y y, respectively. Y

Similar letters ot' reference indicate corresponding parts.

G represents the base of the governor, in the form of a shell or case,having a single vertical steam passage, B, intersected by a lateralsteam-induction passage, A, said passages being adapted to be connected,respectively, with the steam-chest and with the steam-pipe in theordinary manner.

The vertical passageB has at its intersection with the passage A anannular enlargement,- 0, and is provided above and below thisenlargement with single ports aa', through which slides and in which isguided vertically avalve, V, which, by means of a rod, e, is connectedwith and actuated by the vibratory governorarms D in the ordinarymanner.

The valve V has at each ofthe ports a a two external peripheral tlanges,b b b b', which are fitted steam-tight to the peripheral face of saidports. The two flanges at' each of the ports are arranged such adistance asunder that the lower ange will close the port when thegovernor is at rest, and the upper flange willbe carried into likeposition when the governor has attained its maximum speed. Acircumferential recess or channel, c, in the exterior of the valvebetween the flanges aforesaid, opens the ports a a as the en gineisworking at ordinary speed and the valve V is held at an intermediateposition. Vertical ribs r extended across the channels c serve to guidethe valvein its movement.

The valve V has extended verticallythrou gh `its axis alsteam-passage,s, so that simultaneously with the escape of steam through the lowerport, steam is also allowed to pass through the upper port, and thencethrough the center of the valve, the latter current of steam being thusbrought directly in line with the outlet of the passage B before unitingthe two currents, and at the same time augmentin g the capacity of thevalve and rendering the same more sensitive in its action.

In order to thoroughly distribute the steam completely around thev valveV, l place in the passage A a diaphragm, finsufficiently back of thevalve V to allow a portion ot the steam to circulate between them, saiddiaphragm deiiecting the steam and distributing it completely around thevalve and through the ports, as indicated by arrows inthe drawings.

It will be observed that the steam-space between the delector u andvalve V communicates directly with and constitutes part of theannularsteam-passageosurrounding the valve, thus producing the aforesaideffect.

IOO

Having described my invention, what I claim as new, and desire to secureby Letters Patent, 1s

The improved governorvalve herein described, consisting of thecombination of the case G, having a single vertical steam-passage, B,with an annular enlargement, o, at its inter-- section with thesteam-induction passage A, and provided above and below the same with asingle port, a a', and the valve V, having at each of said ports twoperipheral flanges, b b b b', and intermediate channels c, and providedwith the axial passage s, and the de-

